# tests/test_services.py
import pytest
from app.services.product_service import ProductService
from models.api_models import ProductCreate
from models.database_models import Product


class TestProductService:
    def setup_method(self):
        self.service = ProductService()

    def test_create_product_with_gtin_validation(self, db):
        """Test product creation with GTIN validation"""
        product_data = ProductCreate(
            product_id="SVC001",
            title="Service Test Product",
            gtin="1234567890123",
            price="19.99",
            marketplace="TestMarket"
        )

        product = self.service.create_product(db, product_data)

        assert product.product_id == "SVC001"
        assert product.gtin == "1234567890123"
        assert product.marketplace == "TestMarket"

    def test_create_product_invalid_gtin(self, db):
        """Test product creation with invalid GTIN"""
        product_data = ProductCreate(
            product_id="SVC002",
            title="Service Test Product",
            gtin="invalid_gtin",
            price="19.99"
        )

        with pytest.raises(ValueError, match="Invalid GTIN format"):
            self.service.create_product(db, product_data)

    def test_get_products_with_filters(self, db, test_product):
        """Test getting products with various filters"""
        products, total = self.service.get_products_with_filters(
            db,
            brand="TestBrand"
        )

        assert total == 1
        assert len(products) == 1
        assert products[0].brand == "TestBrand"

    def test_get_products_with_search(self, db, test_product):
        """Test getting products with search"""
        products, total = self.service.get_products_with_filters(
            db,
            search="Test Product"
        )

        assert total == 1
        assert len(products) == 1